linux/sound/soc/soc-topology.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2//
   3// soc-topology.c  --  ALSA SoC Topology
   4//
   5// Copyright (C) 2012 Texas Instruments Inc.
   6// Copyright (C) 2015 Intel Corporation.
   7//
   8// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
   9//              K, Mythri P <mythri.p.k@intel.com>
  10//              Prusty, Subhransu S <subhransu.s.prusty@intel.com>
  11//              B, Jayachandran <jayachandran.b@intel.com>
  12//              Abdullah, Omair M <omair.m.abdullah@intel.com>
  13//              Jin, Yao <yao.jin@intel.com>
  14//              Lin, Mengdong <mengdong.lin@intel.com>
  15//
  16//  Add support to read audio firmware topology alongside firmware text. The
  17//  topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links,
  18//  equalizers, firmware, coefficients etc.
  19//
  20//  This file only manages the core ALSA and ASoC components, all other bespoke
  21//  firmware topology data is passed to component drivers for bespoke handling.
  22
  23#include <linux/kernel.h>
  24#include <linux/export.h>
  25#include <linux/list.h>
  26#include <linux/firmware.h>
  27#include <linux/slab.h>
  28#include <sound/soc.h>
  29#include <sound/soc-dapm.h>
  30#include <sound/soc-topology.h>
  31#include <sound/tlv.h>
  32
  33#define SOC_TPLG_MAGIC_BIG_ENDIAN            0x436F5341 /* ASoC in reverse */
  34
  35/*
  36 * We make several passes over the data (since it wont necessarily be ordered)
  37 * and process objects in the following order. This guarantees the component
  38 * drivers will be ready with any vendor data before the mixers and DAPM objects
  39 * are loaded (that may make use of the vendor data).
  40 */
  41#define SOC_TPLG_PASS_MANIFEST          0
  42#define SOC_TPLG_PASS_VENDOR            1
  43#define SOC_TPLG_PASS_MIXER             2
  44#define SOC_TPLG_PASS_WIDGET            3
  45#define SOC_TPLG_PASS_PCM_DAI           4
  46#define SOC_TPLG_PASS_GRAPH             5
  47#define SOC_TPLG_PASS_PINS              6
  48#define SOC_TPLG_PASS_BE_DAI            7
  49#define SOC_TPLG_PASS_LINK              8
  50
  51#define SOC_TPLG_PASS_START     SOC_TPLG_PASS_MANIFEST
  52#define SOC_TPLG_PASS_END       SOC_TPLG_PASS_LINK
  53
  54/* topology context */
  55struct soc_tplg {
  56        const struct firmware *fw;
  57
  58        /* runtime FW parsing */
  59        const u8 *pos;          /* read postion */
  60        const u8 *hdr_pos;      /* header position */
  61        unsigned int pass;      /* pass number */
  62
  63        /* component caller */
  64        struct device *dev;
  65        struct snd_soc_component *comp;
  66        u32 index;      /* current block index */
  67        u32 req_index;  /* required index, only loaded/free matching blocks */
  68
  69        /* vendor specific kcontrol operations */
  70        const struct snd_soc_tplg_kcontrol_ops *io_ops;
  71        int io_ops_count;
  72
  73        /* vendor specific bytes ext handlers, for TLV bytes controls */
  74        const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
  75        int bytes_ext_ops_count;
  76
  77        /* optional fw loading callbacks to component drivers */
  78        struct snd_soc_tplg_ops *ops;
  79};
  80
  81static int soc_tplg_process_headers(struct soc_tplg *tplg);
  82static void soc_tplg_complete(struct soc_tplg *tplg);
  83struct snd_soc_dapm_widget *
  84snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
  85                         const struct snd_soc_dapm_widget *widget);
  86struct snd_soc_dapm_widget *
  87snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
  88                         const struct snd_soc_dapm_widget *widget);
  89static void soc_tplg_denum_remove_texts(struct soc_enum *se);
  90static void soc_tplg_denum_remove_values(struct soc_enum *se);
  91
  92/* check we dont overflow the data for this control chunk */
  93static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
  94        unsigned int count, size_t bytes, const char *elem_type)
  95{
  96        const u8 *end = tplg->pos + elem_size * count;
  97
  98        if (end > tplg->fw->data + tplg->fw->size) {
  99                dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
 100                        elem_type);
 101                return -EINVAL;
 102        }
 103
 104        /* check there is enough room in chunk for control.
 105           extra bytes at the end of control are for vendor data here  */
 106        if (elem_size * count > bytes) {
 107                dev_err(tplg->dev,
 108                        "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
 109                        elem_type, count, elem_size, bytes);
 110                return -EINVAL;
 111        }
 112
 113        return 0;
 114}
 115
 116static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
 117{
 118        const u8 *end = tplg->hdr_pos;
 119
 120        if (end >= tplg->fw->data + tplg->fw->size)
 121                return 1;
 122        return 0;
 123}
 124
 125static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
 126{
 127        return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
 128}
 129
 130static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
 131{
 132        return (unsigned long)(tplg->pos - tplg->fw->data);
 133}
 134
 135/* mapping of Kcontrol types and associated operations. */
 136static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
 137        {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
 138                snd_soc_put_volsw, snd_soc_info_volsw},
 139        {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
 140                snd_soc_put_volsw_sx, NULL},
 141        {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
 142                snd_soc_put_enum_double, snd_soc_info_enum_double},
 143        {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
 144                snd_soc_put_enum_double, NULL},
 145        {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
 146                snd_soc_bytes_put, snd_soc_bytes_info},
 147        {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
 148                snd_soc_put_volsw_range, snd_soc_info_volsw_range},
 149        {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
 150                snd_soc_put_xr_sx, snd_soc_info_xr_sx},
 151        {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
 152                snd_soc_put_strobe, NULL},
 153        {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
 154                snd_soc_dapm_put_volsw, snd_soc_info_volsw},
 155        {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
 156                snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
 157        {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
 158                snd_soc_dapm_put_enum_double, NULL},
 159        {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
 160                snd_soc_dapm_put_enum_double, NULL},
 161        {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
 162                snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
 163};
 164
 165struct soc_tplg_map {
 166        int uid;
 167        int kid;
 168};
 169
 170/* mapping of widget types from UAPI IDs to kernel IDs */
 171static const struct soc_tplg_map dapm_map[] = {
 172        {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
 173        {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
 174        {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
 175        {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
 176        {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
 177        {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
 178        {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
 179        {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
 180        {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
 181        {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
 182        {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
 183        {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
 184        {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
 185        {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
 186        {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
 187        {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
 188        {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
 189        {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
 190        {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
 191        {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
 192        {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
 193        {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
 194        {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
 195        {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
 196};
 197
 198static int tplc_chan_get_reg(struct soc_tplg *tplg,
 199        struct snd_soc_tplg_channel *chan, int map)
 200{
 201        int i;
 202
 203        for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
 204                if (le32_to_cpu(chan[i].id) == map)
 205                        return le32_to_cpu(chan[i].reg);
 206        }
 207
 208        return -EINVAL;
 209}
 210
 211static int tplc_chan_get_shift(struct soc_tplg *tplg,
 212        struct snd_soc_tplg_channel *chan, int map)
 213{
 214        int i;
 215
 216        for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
 217                if (le32_to_cpu(chan[i].id) == map)
 218                        return le32_to_cpu(chan[i].shift);
 219        }
 220
 221        return -EINVAL;
 222}
 223
 224static int get_widget_id(int tplg_type)
 225{
 226        int i;
 227
 228        for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
 229                if (tplg_type == dapm_map[i].uid)
 230                        return dapm_map[i].kid;
 231        }
 232
 233        return -EINVAL;
 234}
 235
 236static inline void soc_bind_err(struct soc_tplg *tplg,
 237        struct snd_soc_tplg_ctl_hdr *hdr, int index)
 238{
 239        dev_err(tplg->dev,
 240                "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
 241                hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
 242                soc_tplg_get_offset(tplg));
 243}
 244
 245static inline void soc_control_err(struct soc_tplg *tplg,
 246        struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
 247{
 248        dev_err(tplg->dev,
 249                "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
 250                name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
 251                soc_tplg_get_offset(tplg));
 252}
 253
 254/* pass vendor data to component driver for processing */
 255static int soc_tplg_vendor_load_(struct soc_tplg *tplg,
 256        struct snd_soc_tplg_hdr *hdr)
 257{
 258        int ret = 0;
 259
 260        if (tplg->comp && tplg->ops && tplg->ops->vendor_load)
 261                ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
 262        else {
 263                dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
 264                        hdr->vendor_type);
 265                return -EINVAL;
 266        }
 267
 268        if (ret < 0)
 269                dev_err(tplg->dev,
 270                        "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
 271                        soc_tplg_get_hdr_offset(tplg),
 272                        soc_tplg_get_hdr_offset(tplg),
 273                        hdr->type, hdr->vendor_type);
 274        return ret;
 275}
 276
 277/* pass vendor data to component driver for processing */
 278static int soc_tplg_vendor_load(struct soc_tplg *tplg,
 279        struct snd_soc_tplg_hdr *hdr)
 280{
 281        if (tplg->pass != SOC_TPLG_PASS_VENDOR)
 282                return 0;
 283
 284        return soc_tplg_vendor_load_(tplg, hdr);
 285}
 286
 287/* optionally pass new dynamic widget to component driver. This is mainly for
 288 * external widgets where we can assign private data/ops */
 289static int soc_tplg_widget_load(struct soc_tplg *tplg,
 290        struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
 291{
 292        if (tplg->comp && tplg->ops && tplg->ops->widget_load)
 293                return tplg->ops->widget_load(tplg->comp, tplg->index, w,
 294                        tplg_w);
 295
 296        return 0;
 297}
 298
 299/* optionally pass new dynamic widget to component driver. This is mainly for
 300 * external widgets where we can assign private data/ops */
 301static int soc_tplg_widget_ready(struct soc_tplg *tplg,
 302        struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
 303{
 304        if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
 305                return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
 306                        tplg_w);
 307
 308        return 0;
 309}
 310
 311/* pass DAI configurations to component driver for extra initialization */
 312static int soc_tplg_dai_load(struct soc_tplg *tplg,
 313        struct snd_soc_dai_driver *dai_drv,
 314        struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
 315{
 316        if (tplg->comp && tplg->ops && tplg->ops->dai_load)
 317                return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
 318                        pcm, dai);
 319
 320        return 0;
 321}
 322
 323/* pass link configurations to component driver for extra initialization */
 324static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
 325        struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
 326{
 327        if (tplg->comp && tplg->ops && tplg->ops->link_load)
 328                return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
 329
 330        return 0;
 331}
 332
 333/* tell the component driver that all firmware has been loaded in this request */
 334static void soc_tplg_complete(struct soc_tplg *tplg)
 335{
 336        if (tplg->comp && tplg->ops && tplg->ops->complete)
 337                tplg->ops->complete(tplg->comp);
 338}
 339
 340/* add a dynamic kcontrol */
 341static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
 342        const struct snd_kcontrol_new *control_new, const char *prefix,
 343        void *data, struct snd_kcontrol **kcontrol)
 344{
 345        int err;
 346
 347        *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
 348        if (*kcontrol == NULL) {
 349                dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
 350                control_new->name);
 351                return -ENOMEM;
 352        }
 353
 354        err = snd_ctl_add(card, *kcontrol);
 355        if (err < 0) {
 356                dev_err(dev, "ASoC: Failed to add %s: %d\n",
 357                        control_new->name, err);
 358                return err;
 359        }
 360
 361        return 0;
 362}
 363
 364/* add a dynamic kcontrol for component driver */
 365static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
 366        struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
 367{
 368        struct snd_soc_component *comp = tplg->comp;
 369
 370        return soc_tplg_add_dcontrol(comp->card->snd_card,
 371                                comp->dev, k, NULL, comp, kcontrol);
 372}
 373
 374/* remove a mixer kcontrol */
 375static void remove_mixer(struct snd_soc_component *comp,
 376        struct snd_soc_dobj *dobj, int pass)
 377{
 378        struct snd_card *card = comp->card->snd_card;
 379        struct soc_mixer_control *sm =
 380                container_of(dobj, struct soc_mixer_control, dobj);
 381        const unsigned int *p = NULL;
 382
 383        if (pass != SOC_TPLG_PASS_MIXER)
 384                return;
 385
 386        if (dobj->ops && dobj->ops->control_unload)
 387                dobj->ops->control_unload(comp, dobj);
 388
 389        if (dobj->control.kcontrol->tlv.p)
 390                p = dobj->control.kcontrol->tlv.p;
 391        snd_ctl_remove(card, dobj->control.kcontrol);
 392        list_del(&dobj->list);
 393        kfree(sm);
 394        kfree(p);
 395}
 396
 397/* remove an enum kcontrol */
 398static void remove_enum(struct snd_soc_component *comp,
 399        struct snd_soc_dobj *dobj, int pass)
 400{
 401        struct snd_card *card = comp->card->snd_card;
 402        struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
 403
 404        if (pass != SOC_TPLG_PASS_MIXER)
 405                return;
 406
 407        if (dobj->ops && dobj->ops->control_unload)
 408                dobj->ops->control_unload(comp, dobj);
 409
 410        snd_ctl_remove(card, dobj->control.kcontrol);
 411        list_del(&dobj->list);
 412
 413        soc_tplg_denum_remove_values(se);
 414        soc_tplg_denum_remove_texts(se);
 415        kfree(se);
 416}
 417
 418/* remove a byte kcontrol */
 419static void remove_bytes(struct snd_soc_component *comp,
 420        struct snd_soc_dobj *dobj, int pass)
 421{
 422        struct snd_card *card = comp->card->snd_card;
 423        struct soc_bytes_ext *sb =
 424                container_of(dobj, struct soc_bytes_ext, dobj);
 425
 426        if (pass != SOC_TPLG_PASS_MIXER)
 427                return;
 428
 429        if (dobj->ops && dobj->ops->control_unload)
 430                dobj->ops->control_unload(comp, dobj);
 431
 432        snd_ctl_remove(card, dobj->control.kcontrol);
 433        list_del(&dobj->list);
 434        kfree(sb);
 435}
 436
 437/* remove a route */
 438static void remove_route(struct snd_soc_component *comp,
 439                         struct snd_soc_dobj *dobj, int pass)
 440{
 441        struct snd_soc_dapm_route *route =
 442                container_of(dobj, struct snd_soc_dapm_route, dobj);
 443
 444        if (pass != SOC_TPLG_PASS_GRAPH)
 445                return;
 446
 447        if (dobj->ops && dobj->ops->dapm_route_unload)
 448                dobj->ops->dapm_route_unload(comp, dobj);
 449
 450        list_del(&dobj->list);
 451        kfree(route);
 452}
 453
 454/* remove a widget and it's kcontrols - routes must be removed first */
 455static void remove_widget(struct snd_soc_component *comp,
 456        struct snd_soc_dobj *dobj, int pass)
 457{
 458        struct snd_card *card = comp->card->snd_card;
 459        struct snd_soc_dapm_widget *w =
 460                container_of(dobj, struct snd_soc_dapm_widget, dobj);
 461        int i;
 462
 463        if (pass != SOC_TPLG_PASS_WIDGET)
 464                return;
 465
 466        if (dobj->ops && dobj->ops->widget_unload)
 467                dobj->ops->widget_unload(comp, dobj);
 468
 469        if (!w->kcontrols)
 470                goto free_news;
 471
 472        /*
 473         * Dynamic Widgets either have 1..N enum kcontrols or mixers.
 474         * The enum may either have an array of values or strings.
 475         */
 476        if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
 477                /* enumerated widget mixer */
 478                for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 479                        struct snd_kcontrol *kcontrol = w->kcontrols[i];
 480                        struct soc_enum *se =
 481                                (struct soc_enum *)kcontrol->private_value;
 482
 483                        snd_ctl_remove(card, kcontrol);
 484
 485                        /* free enum kcontrol's dvalues and dtexts */
 486                        soc_tplg_denum_remove_values(se);
 487                        soc_tplg_denum_remove_texts(se);
 488
 489                        kfree(se);
 490                        kfree(w->kcontrol_news[i].name);
 491                }
 492        } else {
 493                /* volume mixer or bytes controls */
 494                for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 495                        struct snd_kcontrol *kcontrol = w->kcontrols[i];
 496
 497                        if (dobj->widget.kcontrol_type
 498                            == SND_SOC_TPLG_TYPE_MIXER)
 499                                kfree(kcontrol->tlv.p);
 500
 501                        /* Private value is used as struct soc_mixer_control
 502                         * for volume mixers or soc_bytes_ext for bytes
 503                         * controls.
 504                         */
 505                        kfree((void *)kcontrol->private_value);
 506                        snd_ctl_remove(card, kcontrol);
 507                        kfree(w->kcontrol_news[i].name);
 508                }
 509        }
 510
 511free_news:
 512        kfree(w->kcontrol_news);
 513
 514        list_del(&dobj->list);
 515
 516        /* widget w is freed by soc-dapm.c */
 517}
 518
 519/* remove DAI configurations */
 520static void remove_dai(struct snd_soc_component *comp,
 521        struct snd_soc_dobj *dobj, int pass)
 522{
 523        struct snd_soc_dai_driver *dai_drv =
 524                container_of(dobj, struct snd_soc_dai_driver, dobj);
 525        struct snd_soc_dai *dai;
 526
 527        if (pass != SOC_TPLG_PASS_PCM_DAI)
 528                return;
 529
 530        if (dobj->ops && dobj->ops->dai_unload)
 531                dobj->ops->dai_unload(comp, dobj);
 532
 533        list_for_each_entry(dai, &comp->dai_list, list)
 534                if (dai->driver == dai_drv)
 535                        dai->driver = NULL;
 536
 537        kfree(dai_drv->playback.stream_name);
 538        kfree(dai_drv->capture.stream_name);
 539        kfree(dai_drv->name);
 540        list_del(&dobj->list);
 541        kfree(dai_drv);
 542}
 543
 544/* remove link configurations */
 545static void remove_link(struct snd_soc_component *comp,
 546        struct snd_soc_dobj *dobj, int pass)
 547{
 548        struct snd_soc_dai_link *link =
 549                container_of(dobj, struct snd_soc_dai_link, dobj);
 550
 551        if (pass != SOC_TPLG_PASS_PCM_DAI)
 552                return;
 553
 554        if (dobj->ops && dobj->ops->link_unload)
 555                dobj->ops->link_unload(comp, dobj);
 556
 557        kfree(link->name);
 558        kfree(link->stream_name);
 559        kfree(link->cpus->dai_name);
 560
 561        list_del(&dobj->list);
 562        snd_soc_remove_dai_link(comp->card, link);
 563        kfree(link);
 564}
 565
 566/* unload dai link */
 567static void remove_backend_link(struct snd_soc_component *comp,
 568        struct snd_soc_dobj *dobj, int pass)
 569{
 570        if (pass != SOC_TPLG_PASS_LINK)
 571                return;
 572
 573        if (dobj->ops && dobj->ops->link_unload)
 574                dobj->ops->link_unload(comp, dobj);
 575
 576        /*
 577         * We don't free the link here as what remove_link() do since BE
 578         * links are not allocated by topology.
 579         * We however need to reset the dobj type to its initial values
 580         */
 581        dobj->type = SND_SOC_DOBJ_NONE;
 582        list_del(&dobj->list);
 583}
 584
 585/* bind a kcontrol to it's IO handlers */
 586static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 587        struct snd_kcontrol_new *k,
 588        const struct soc_tplg *tplg)
 589{
 590        const struct snd_soc_tplg_kcontrol_ops *ops;
 591        const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
 592        int num_ops, i;
 593
 594        if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
 595                && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
 596                && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
 597                && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 598                struct soc_bytes_ext *sbe;
 599                struct snd_soc_tplg_bytes_control *be;
 600
 601                sbe = (struct soc_bytes_ext *)k->private_value;
 602                be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
 603
 604                /* TLV bytes controls need standard kcontrol info handler,
 605                 * TLV callback and extended put/get handlers.
 606                 */
 607                k->info = snd_soc_bytes_info_ext;
 608                k->tlv.c = snd_soc_bytes_tlv_callback;
 609
 610                ext_ops = tplg->bytes_ext_ops;
 611                num_ops = tplg->bytes_ext_ops_count;
 612                for (i = 0; i < num_ops; i++) {
 613                        if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
 614                                sbe->put = ext_ops[i].put;
 615                        if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
 616                                sbe->get = ext_ops[i].get;
 617                }
 618
 619                if (sbe->put && sbe->get)
 620                        return 0;
 621                else
 622                        return -EINVAL;
 623        }
 624
 625        /* try and map vendor specific kcontrol handlers first */
 626        ops = tplg->io_ops;
 627        num_ops = tplg->io_ops_count;
 628        for (i = 0; i < num_ops; i++) {
 629
 630                if (k->put == NULL && ops[i].id == hdr->ops.put)
 631                        k->put = ops[i].put;
 632                if (k->get == NULL && ops[i].id == hdr->ops.get)
 633                        k->get = ops[i].get;
 634                if (k->info == NULL && ops[i].id == hdr->ops.info)
 635                        k->info = ops[i].info;
 636        }
 637
 638        /* vendor specific handlers found ? */
 639        if (k->put && k->get && k->info)
 640                return 0;
 641
 642        /* none found so try standard kcontrol handlers */
 643        ops = io_ops;
 644        num_ops = ARRAY_SIZE(io_ops);
 645        for (i = 0; i < num_ops; i++) {
 646
 647                if (k->put == NULL && ops[i].id == hdr->ops.put)
 648                        k->put = ops[i].put;
 649                if (k->get == NULL && ops[i].id == hdr->ops.get)
 650                        k->get = ops[i].get;
 651                if (k->info == NULL && ops[i].id == hdr->ops.info)
 652                        k->info = ops[i].info;
 653        }
 654
 655        /* standard handlers found ? */
 656        if (k->put && k->get && k->info)
 657                return 0;
 658
 659        /* nothing to bind */
 660        return -EINVAL;
 661}
 662
 663/* bind a widgets to it's evnt handlers */
 664int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
 665                const struct snd_soc_tplg_widget_events *events,
 666                int num_events, u16 event_type)
 667{
 668        int i;
 669
 670        w->event = NULL;
 671
 672        for (i = 0; i < num_events; i++) {
 673                if (event_type == events[i].type) {
 674
 675                        /* found - so assign event */
 676                        w->event = events[i].event_handler;
 677                        return 0;
 678                }
 679        }
 680
 681        /* not found */
 682        return -EINVAL;
 683}
 684EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
 685
 686/* optionally pass new dynamic kcontrol to component driver. */
 687static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
 688        struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
 689{
 690        if (tplg->comp && tplg->ops && tplg->ops->control_load)
 691                return tplg->ops->control_load(tplg->comp, tplg->index, k,
 692                        hdr);
 693
 694        return 0;
 695}
 696
 697
 698static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
 699        struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
 700{
 701        unsigned int item_len = 2 * sizeof(unsigned int);
 702        unsigned int *p;
 703
 704        p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
 705        if (!p)
 706                return -ENOMEM;
 707
 708        p[0] = SNDRV_CTL_TLVT_DB_SCALE;
 709        p[1] = item_len;
 710        p[2] = le32_to_cpu(scale->min);
 711        p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
 712                | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
 713
 714        kc->tlv.p = (void *)p;
 715        return 0;
 716}
 717
 718static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 719        struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
 720{
 721        struct snd_soc_tplg_ctl_tlv *tplg_tlv;
 722        u32 access = le32_to_cpu(tc->access);
 723
 724        if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
 725                return 0;
 726
 727        if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
 728                tplg_tlv = &tc->tlv;
 729                switch (le32_to_cpu(tplg_tlv->type)) {
 730                case SNDRV_CTL_TLVT_DB_SCALE:
 731                        return soc_tplg_create_tlv_db_scale(tplg, kc,
 732                                        &tplg_tlv->scale);
 733
 734                /* TODO: add support for other TLV types */
 735                default:
 736                        dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
 737                                        tplg_tlv->type);
 738                        return -EINVAL;
 739                }
 740        }
 741
 742        return 0;
 743}
 744
 745static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
 746        struct snd_kcontrol_new *kc)
 747{
 748        kfree(kc->tlv.p);
 749}
 750
 751static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 752        size_t size)
 753{
 754        struct snd_soc_tplg_bytes_control *be;
 755        struct soc_bytes_ext *sbe;
 756        struct snd_kcontrol_new kc;
 757        int i, err;
 758
 759        if (soc_tplg_check_elem_count(tplg,
 760                sizeof(struct snd_soc_tplg_bytes_control), count,
 761                        size, "mixer bytes")) {
 762                dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
 763                        count);
 764                return -EINVAL;
 765        }
 766
 767        for (i = 0; i < count; i++) {
 768                be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
 769
 770                /* validate kcontrol */
 771                if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 772                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 773                        return -EINVAL;
 774
 775                sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
 776                if (sbe == NULL)
 777                        return -ENOMEM;
 778
 779                tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
 780                              le32_to_cpu(be->priv.size));
 781
 782                dev_dbg(tplg->dev,
 783                        "ASoC: adding bytes kcontrol %s with access 0x%x\n",
 784                        be->hdr.name, be->hdr.access);
 785
 786                memset(&kc, 0, sizeof(kc));
 787                kc.name = be->hdr.name;
 788                kc.private_value = (long)sbe;
 789                kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 790                kc.access = le32_to_cpu(be->hdr.access);
 791
 792                sbe->max = le32_to_cpu(be->max);
 793                sbe->dobj.type = SND_SOC_DOBJ_BYTES;
 794                sbe->dobj.ops = tplg->ops;
 795                INIT_LIST_HEAD(&sbe->dobj.list);
 796
 797                /* map io handlers */
 798                err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
 799                if (err) {
 800                        soc_control_err(tplg, &be->hdr, be->hdr.name);
 801                        kfree(sbe);
 802                        continue;
 803                }
 804
 805                /* pass control to driver for optional further init */
 806                err = soc_tplg_init_kcontrol(tplg, &kc,
 807                        (struct snd_soc_tplg_ctl_hdr *)be);
 808                if (err < 0) {
 809                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
 810                                be->hdr.name);
 811                        kfree(sbe);
 812                        continue;
 813                }
 814
 815                /* register control here */
 816                err = soc_tplg_add_kcontrol(tplg, &kc,
 817                        &sbe->dobj.control.kcontrol);
 818                if (err < 0) {
 819                        dev_err(tplg->dev, "ASoC: failed to add %s\n",
 820                                be->hdr.name);
 821                        kfree(sbe);
 822                        continue;
 823                }
 824
 825                list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
 826        }
 827        return 0;
 828
 829}
 830
 831static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 832        size_t size)
 833{
 834        struct snd_soc_tplg_mixer_control *mc;
 835        struct soc_mixer_control *sm;
 836        struct snd_kcontrol_new kc;
 837        int i, err;
 838
 839        if (soc_tplg_check_elem_count(tplg,
 840                sizeof(struct snd_soc_tplg_mixer_control),
 841                count, size, "mixers")) {
 842
 843                dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
 844                        count);
 845                return -EINVAL;
 846        }
 847
 848        for (i = 0; i < count; i++) {
 849                mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
 850
 851                /* validate kcontrol */
 852                if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 853                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 854                        return -EINVAL;
 855
 856                sm = kzalloc(sizeof(*sm), GFP_KERNEL);
 857                if (sm == NULL)
 858                        return -ENOMEM;
 859                tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
 860                              le32_to_cpu(mc->priv.size));
 861
 862                dev_dbg(tplg->dev,
 863                        "ASoC: adding mixer kcontrol %s with access 0x%x\n",
 864                        mc->hdr.name, mc->hdr.access);
 865
 866                memset(&kc, 0, sizeof(kc));
 867                kc.name = mc->hdr.name;
 868                kc.private_value = (long)sm;
 869                kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 870                kc.access = le32_to_cpu(mc->hdr.access);
 871
 872                /* we only support FL/FR channel mapping atm */
 873                sm->reg = tplc_chan_get_reg(tplg, mc->channel,
 874                        SNDRV_CHMAP_FL);
 875                sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
 876                        SNDRV_CHMAP_FR);
 877                sm->shift = tplc_chan_get_shift(tplg, mc->channel,
 878                        SNDRV_CHMAP_FL);
 879                sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
 880                        SNDRV_CHMAP_FR);
 881
 882                sm->max = le32_to_cpu(mc->max);
 883                sm->min = le32_to_cpu(mc->min);
 884                sm->invert = le32_to_cpu(mc->invert);
 885                sm->platform_max = le32_to_cpu(mc->platform_max);
 886                sm->dobj.index = tplg->index;
 887                sm->dobj.ops = tplg->ops;
 888                sm->dobj.type = SND_SOC_DOBJ_MIXER;
 889                INIT_LIST_HEAD(&sm->dobj.list);
 890
 891                /* map io handlers */
 892                err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
 893                if (err) {
 894                        soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 895                        kfree(sm);
 896                        continue;
 897                }
 898
 899                /* create any TLV data */
 900                soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
 901
 902                /* pass control to driver for optional further init */
 903                err = soc_tplg_init_kcontrol(tplg, &kc,
 904                        (struct snd_soc_tplg_ctl_hdr *) mc);
 905                if (err < 0) {
 906                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
 907                                mc->hdr.name);
 908                        soc_tplg_free_tlv(tplg, &kc);
 909                        kfree(sm);
 910                        continue;
 911                }
 912
 913                /* register control here */
 914                err = soc_tplg_add_kcontrol(tplg, &kc,
 915                        &sm->dobj.control.kcontrol);
 916                if (err < 0) {
 917                        dev_err(tplg->dev, "ASoC: failed to add %s\n",
 918                                mc->hdr.name);
 919                        soc_tplg_free_tlv(tplg, &kc);
 920                        kfree(sm);
 921                        continue;
 922                }
 923
 924                list_add(&sm->dobj.list, &tplg->comp->dobj_list);
 925        }
 926
 927        return 0;
 928}
 929
 930static int soc_tplg_denum_create_texts(struct soc_enum *se,
 931        struct snd_soc_tplg_enum_control *ec)
 932{
 933        int i, ret;
 934
 935        se->dobj.control.dtexts =
 936                kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
 937        if (se->dobj.control.dtexts == NULL)
 938                return -ENOMEM;
 939
 940        for (i = 0; i < ec->items; i++) {
 941
 942                if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 943                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
 944                        ret = -EINVAL;
 945                        goto err;
 946                }
 947
 948                se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
 949                if (!se->dobj.control.dtexts[i]) {
 950                        ret = -ENOMEM;
 951                        goto err;
 952                }
 953        }
 954
 955        se->items = le32_to_cpu(ec->items);
 956        se->texts = (const char * const *)se->dobj.control.dtexts;
 957        return 0;
 958
 959err:
 960        se->items = i;
 961        soc_tplg_denum_remove_texts(se);
 962        return ret;
 963}
 964
 965static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
 966{
 967        int i = se->items;
 968
 969        for (--i; i >= 0; i--)
 970                kfree(se->dobj.control.dtexts[i]);
 971        kfree(se->dobj.control.dtexts);
 972}
 973
 974static int soc_tplg_denum_create_values(struct soc_enum *se,
 975        struct snd_soc_tplg_enum_control *ec)
 976{
 977        int i;
 978
 979        if (le32_to_cpu(ec->items) > sizeof(*ec->values))
 980                return -EINVAL;
 981
 982        se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
 983                                           sizeof(u32),
 984                                           GFP_KERNEL);
 985        if (!se->dobj.control.dvalues)
 986                return -ENOMEM;
 987
 988        /* convert from little-endian */
 989        for (i = 0; i < le32_to_cpu(ec->items); i++) {
 990                se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
 991        }
 992
 993        return 0;
 994}
 995
 996static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
 997{
 998        kfree(se->dobj.control.dvalues);
 999}
1000
1001static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
1002        size_t size)
1003{
1004        struct snd_soc_tplg_enum_control *ec;
1005        struct soc_enum *se;
1006        struct snd_kcontrol_new kc;
1007        int i, ret, err;
1008
1009        if (soc_tplg_check_elem_count(tplg,
1010                sizeof(struct snd_soc_tplg_enum_control),
1011                count, size, "enums")) {
1012
1013                dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1014                        count);
1015                return -EINVAL;
1016        }
1017
1018        for (i = 0; i < count; i++) {
1019                ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1020
1021                /* validate kcontrol */
1022                if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1023                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1024                        return -EINVAL;
1025
1026                se = kzalloc((sizeof(*se)), GFP_KERNEL);
1027                if (se == NULL)
1028                        return -ENOMEM;
1029
1030                tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1031                              le32_to_cpu(ec->priv.size));
1032
1033                dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1034                        ec->hdr.name, ec->items);
1035
1036                memset(&kc, 0, sizeof(kc));
1037                kc.name = ec->hdr.name;
1038                kc.private_value = (long)se;
1039                kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1040                kc.access = le32_to_cpu(ec->hdr.access);
1041
1042                se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1043                se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1044                        SNDRV_CHMAP_FL);
1045                se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1046                        SNDRV_CHMAP_FL);
1047
1048                se->mask = le32_to_cpu(ec->mask);
1049                se->dobj.index = tplg->index;
1050                se->dobj.type = SND_SOC_DOBJ_ENUM;
1051                se->dobj.ops = tplg->ops;
1052                INIT_LIST_HEAD(&se->dobj.list);
1053
1054                switch (le32_to_cpu(ec->hdr.ops.info)) {
1055                case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1056                case SND_SOC_TPLG_CTL_ENUM_VALUE:
1057                        err = soc_tplg_denum_create_values(se, ec);
1058                        if (err < 0) {
1059                                dev_err(tplg->dev,
1060                                        "ASoC: could not create values for %s\n",
1061                                        ec->hdr.name);
1062                                kfree(se);
1063                                continue;
1064                        }
1065                        /* fall through */
1066                case SND_SOC_TPLG_CTL_ENUM:
1067                case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1068                case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1069                        err = soc_tplg_denum_create_texts(se, ec);
1070                        if (err < 0) {
1071                                dev_err(tplg->dev,
1072                                        "ASoC: could not create texts for %s\n",
1073                                        ec->hdr.name);
1074                                kfree(se);
1075                                continue;
1076                        }
1077                        break;
1078                default:
1079                        dev_err(tplg->dev,
1080                                "ASoC: invalid enum control type %d for %s\n",
1081                                ec->hdr.ops.info, ec->hdr.name);
1082                        kfree(se);
1083                        continue;
1084                }
1085
1086                /* map io handlers */
1087                err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1088                if (err) {
1089                        soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1090                        kfree(se);
1091                        continue;
1092                }
1093
1094                /* pass control to driver for optional further init */
1095                err = soc_tplg_init_kcontrol(tplg, &kc,
1096                        (struct snd_soc_tplg_ctl_hdr *) ec);
1097                if (err < 0) {
1098                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1099                                ec->hdr.name);
1100                        kfree(se);
1101                        continue;
1102                }
1103
1104                /* register control here */
1105                ret = soc_tplg_add_kcontrol(tplg,
1106                        &kc, &se->dobj.control.kcontrol);
1107                if (ret < 0) {
1108                        dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1109                                ec->hdr.name);
1110                        kfree(se);
1111                        continue;
1112                }
1113
1114                list_add(&se->dobj.list, &tplg->comp->dobj_list);
1115        }
1116
1117        return 0;
1118}
1119
1120static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1121        struct snd_soc_tplg_hdr *hdr)
1122{
1123        struct snd_soc_tplg_ctl_hdr *control_hdr;
1124        int i;
1125
1126        if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1127                tplg->pos += le32_to_cpu(hdr->size) +
1128                        le32_to_cpu(hdr->payload_size);
1129                return 0;
1130        }
1131
1132        dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1133                soc_tplg_get_offset(tplg));
1134
1135        for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1136
1137                control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1138
1139                if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1140                        dev_err(tplg->dev, "ASoC: invalid control size\n");
1141                        return -EINVAL;
1142                }
1143
1144                switch (le32_to_cpu(control_hdr->ops.info)) {
1145                case SND_SOC_TPLG_CTL_VOLSW:
1146                case SND_SOC_TPLG_CTL_STROBE:
1147                case SND_SOC_TPLG_CTL_VOLSW_SX:
1148                case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1149                case SND_SOC_TPLG_CTL_RANGE:
1150                case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1151                case SND_SOC_TPLG_DAPM_CTL_PIN:
1152                        soc_tplg_dmixer_create(tplg, 1,
1153                                               le32_to_cpu(hdr->payload_size));
1154                        break;
1155                case SND_SOC_TPLG_CTL_ENUM:
1156                case SND_SOC_TPLG_CTL_ENUM_VALUE:
1157                case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1158                case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1159                case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1160                        soc_tplg_denum_create(tplg, 1,
1161                                              le32_to_cpu(hdr->payload_size));
1162                        break;
1163                case SND_SOC_TPLG_CTL_BYTES:
1164                        soc_tplg_dbytes_create(tplg, 1,
1165                                               le32_to_cpu(hdr->payload_size));
1166                        break;
1167                default:
1168                        soc_bind_err(tplg, control_hdr, i);
1169                        return -EINVAL;
1170                }
1171        }
1172
1173        return 0;
1174}
1175
1176/* optionally pass new dynamic kcontrol to component driver. */
1177static int soc_tplg_add_route(struct soc_tplg *tplg,
1178        struct snd_soc_dapm_route *route)
1179{
1180        if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load)
1181                return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1182                        route);
1183
1184        return 0;
1185}
1186
1187static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1188        struct snd_soc_tplg_hdr *hdr)
1189{
1190        struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1191        struct snd_soc_tplg_dapm_graph_elem *elem;
1192        struct snd_soc_dapm_route **routes;
1193        int count, i, j;
1194        int ret = 0;
1195
1196        count = le32_to_cpu(hdr->count);
1197
1198        if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1199                tplg->pos +=
1200                        le32_to_cpu(hdr->size) +
1201                        le32_to_cpu(hdr->payload_size);
1202
1203                return 0;
1204        }
1205
1206        if (soc_tplg_check_elem_count(tplg,
1207                sizeof(struct snd_soc_tplg_dapm_graph_elem),
1208                count, le32_to_cpu(hdr->payload_size), "graph")) {
1209
1210                dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1211                        count);
1212                return -EINVAL;
1213        }
1214
1215        dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1216                hdr->index);
1217
1218        /* allocate memory for pointer to array of dapm routes */
1219        routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1220                         GFP_KERNEL);
1221        if (!routes)
1222                return -ENOMEM;
1223
1224        /*
1225         * allocate memory for each dapm route in the array.
1226         * This needs to be done individually so that
1227         * each route can be freed when it is removed in remove_route().
1228         */
1229        for (i = 0; i < count; i++) {
1230                routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
1231                if (!routes[i]) {
1232                        /* free previously allocated memory */
1233                        for (j = 0; j < i; j++)
1234                                kfree(routes[j]);
1235
1236                        kfree(routes);
1237                        return -ENOMEM;
1238                }
1239        }
1240
1241        for (i = 0; i < count; i++) {
1242                elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1243                tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1244
1245                /* validate routes */
1246                if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1247                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1248                        ret = -EINVAL;
1249                        break;
1250                }
1251                if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1252                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1253                        ret = -EINVAL;
1254                        break;
1255                }
1256                if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1257                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1258                        ret = -EINVAL;
1259                        break;
1260                }
1261
1262                routes[i]->source = elem->source;
1263                routes[i]->sink = elem->sink;
1264
1265                /* set to NULL atm for tplg users */
1266                routes[i]->connected = NULL;
1267                if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1268                        routes[i]->control = NULL;
1269                else
1270                        routes[i]->control = elem->control;
1271
1272                /* add route dobj to dobj_list */
1273                routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1274                routes[i]->dobj.ops = tplg->ops;
1275                routes[i]->dobj.index = tplg->index;
1276                list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1277
1278                soc_tplg_add_route(tplg, routes[i]);
1279
1280                /* add route, but keep going if some fail */
1281                snd_soc_dapm_add_routes(dapm, routes[i], 1);
1282        }
1283
1284        /* free memory allocated for all dapm routes in case of error */
1285        if (ret < 0)
1286                for (i = 0; i < count ; i++)
1287                        kfree(routes[i]);
1288
1289        /*
1290         * free pointer to array of dapm routes as this is no longer needed.
1291         * The memory allocated for each dapm route will be freed
1292         * when it is removed in remove_route().
1293         */
1294        kfree(routes);
1295
1296        return ret;
1297}
1298
1299static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1300        struct soc_tplg *tplg, int num_kcontrols)
1301{
1302        struct snd_kcontrol_new *kc;
1303        struct soc_mixer_control *sm;
1304        struct snd_soc_tplg_mixer_control *mc;
1305        int i, err;
1306
1307        kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1308        if (kc == NULL)
1309                return NULL;
1310
1311        for (i = 0; i < num_kcontrols; i++) {
1312                mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1313
1314                /* validate kcontrol */
1315                if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1316                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1317                        goto err_sm;
1318
1319                sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1320                if (sm == NULL)
1321                        goto err_sm;
1322
1323                tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1324                              le32_to_cpu(mc->priv.size));
1325
1326                dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1327                        mc->hdr.name, i);
1328
1329                kc[i].private_value = (long)sm;
1330                kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1331                if (kc[i].name == NULL)
1332                        goto err_sm;
1333                kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1334                kc[i].access = mc->hdr.access;
1335
1336                /* we only support FL/FR channel mapping atm */
1337                sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1338                        SNDRV_CHMAP_FL);
1339                sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1340                        SNDRV_CHMAP_FR);
1341                sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1342                        SNDRV_CHMAP_FL);
1343                sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1344                        SNDRV_CHMAP_FR);
1345
1346                sm->max = mc->max;
1347                sm->min = mc->min;
1348                sm->invert = mc->invert;
1349                sm->platform_max = mc->platform_max;
1350                sm->dobj.index = tplg->index;
1351                INIT_LIST_HEAD(&sm->dobj.list);
1352
1353                /* map io handlers */
1354                err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1355                if (err) {
1356                        soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1357                        goto err_sm;
1358                }
1359
1360                /* create any TLV data */
1361                soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1362
1363                /* pass control to driver for optional further init */
1364                err = soc_tplg_init_kcontrol(tplg, &kc[i],
1365                        (struct snd_soc_tplg_ctl_hdr *)mc);
1366                if (err < 0) {
1367                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1368                                mc->hdr.name);
1369                        soc_tplg_free_tlv(tplg, &kc[i]);
1370                        goto err_sm;
1371                }
1372        }
1373        return kc;
1374
1375err_sm:
1376        for (; i >= 0; i--) {
1377                sm = (struct soc_mixer_control *)kc[i].private_value;
1378                kfree(sm);
1379                kfree(kc[i].name);
1380        }
1381        kfree(kc);
1382
1383        return NULL;
1384}
1385
1386static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1387        struct soc_tplg *tplg, int num_kcontrols)
1388{
1389        struct snd_kcontrol_new *kc;
1390        struct snd_soc_tplg_enum_control *ec;
1391        struct soc_enum *se;
1392        int i, err;
1393
1394        kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1395        if (kc == NULL)
1396                return NULL;
1397
1398        for (i = 0; i < num_kcontrols; i++) {
1399                ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1400                /* validate kcontrol */
1401                if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1402                            SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1403                        goto err_se;
1404
1405                se = kzalloc(sizeof(*se), GFP_KERNEL);
1406                if (se == NULL)
1407                        goto err_se;
1408
1409                tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1410                                ec->priv.size);
1411
1412                dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1413                        ec->hdr.name);
1414
1415                kc[i].private_value = (long)se;
1416                kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1417                if (kc[i].name == NULL)
1418                        goto err_se;
1419                kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1420                kc[i].access = ec->hdr.access;
1421
1422                /* we only support FL/FR channel mapping atm */
1423                se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1424                se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1425                                                  SNDRV_CHMAP_FL);
1426                se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1427                                                  SNDRV_CHMAP_FR);
1428
1429                se->items = ec->items;
1430                se->mask = ec->mask;
1431                se->dobj.index = tplg->index;
1432
1433                switch (le32_to_cpu(ec->hdr.ops.info)) {
1434                case SND_SOC_TPLG_CTL_ENUM_VALUE:
1435                case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1436                        err = soc_tplg_denum_create_values(se, ec);
1437                        if (err < 0) {
1438                                dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1439                                        ec->hdr.name);
1440                                goto err_se;
1441                        }
1442                        /* fall through */
1443                case SND_SOC_TPLG_CTL_ENUM:
1444                case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1445                case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1446                        err = soc_tplg_denum_create_texts(se, ec);
1447                        if (err < 0) {
1448                                dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1449                                        ec->hdr.name);
1450                                goto err_se;
1451                        }
1452                        break;
1453                default:
1454                        dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1455                                ec->hdr.ops.info, ec->hdr.name);
1456                        goto err_se;
1457                }
1458
1459                /* map io handlers */
1460                err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1461                if (err) {
1462                        soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1463                        goto err_se;
1464                }
1465
1466                /* pass control to driver for optional further init */
1467                err = soc_tplg_init_kcontrol(tplg, &kc[i],
1468                        (struct snd_soc_tplg_ctl_hdr *)ec);
1469                if (err < 0) {
1470                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1471                                ec->hdr.name);
1472                        goto err_se;
1473                }
1474        }
1475
1476        return kc;
1477
1478err_se:
1479        for (; i >= 0; i--) {
1480                /* free values and texts */
1481                se = (struct soc_enum *)kc[i].private_value;
1482
1483                if (se) {
1484                        soc_tplg_denum_remove_values(se);
1485                        soc_tplg_denum_remove_texts(se);
1486                }
1487
1488                kfree(se);
1489                kfree(kc[i].name);
1490        }
1491        kfree(kc);
1492
1493        return NULL;
1494}
1495
1496static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1497        struct soc_tplg *tplg, int num_kcontrols)
1498{
1499        struct snd_soc_tplg_bytes_control *be;
1500        struct soc_bytes_ext *sbe;
1501        struct snd_kcontrol_new *kc;
1502        int i, err;
1503
1504        kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1505        if (!kc)
1506                return NULL;
1507
1508        for (i = 0; i < num_kcontrols; i++) {
1509                be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1510
1511                /* validate kcontrol */
1512                if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1513                        SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1514                        goto err_sbe;
1515
1516                sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1517                if (sbe == NULL)
1518                        goto err_sbe;
1519
1520                tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1521                              le32_to_cpu(be->priv.size));
1522
1523                dev_dbg(tplg->dev,
1524                        "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1525                        be->hdr.name, be->hdr.access);
1526
1527                kc[i].private_value = (long)sbe;
1528                kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1529                if (kc[i].name == NULL)
1530                        goto err_sbe;
1531                kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1532                kc[i].access = be->hdr.access;
1533
1534                sbe->max = be->max;
1535                INIT_LIST_HEAD(&sbe->dobj.list);
1536
1537                /* map standard io handlers and check for external handlers */
1538                err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1539                if (err) {
1540                        soc_control_err(tplg, &be->hdr, be->hdr.name);
1541                        goto err_sbe;
1542                }
1543
1544                /* pass control to driver for optional further init */
1545                err = soc_tplg_init_kcontrol(tplg, &kc[i],
1546                        (struct snd_soc_tplg_ctl_hdr *)be);
1547                if (err < 0) {
1548                        dev_err(tplg->dev, "ASoC: failed to init %s\n",
1549                                be->hdr.name);
1550                        goto err_sbe;
1551                }
1552        }
1553
1554        return kc;
1555
1556err_sbe:
1557        for (; i >= 0; i--) {
1558                sbe = (struct soc_bytes_ext *)kc[i].private_value;
1559                kfree(sbe);
1560                kfree(kc[i].name);
1561        }
1562        kfree(kc);
1563
1564        return NULL;
1565}
1566
1567static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1568        struct snd_soc_tplg_dapm_widget *w)
1569{
1570        struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1571        struct snd_soc_dapm_widget template, *widget;
1572        struct snd_soc_tplg_ctl_hdr *control_hdr;
1573        struct snd_soc_card *card = tplg->comp->card;
1574        unsigned int kcontrol_type;
1575        int ret = 0;
1576
1577        if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1578                SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1579                return -EINVAL;
1580        if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1581                SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1582                return -EINVAL;
1583
1584        dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1585                w->name, w->id);
1586
1587        memset(&template, 0, sizeof(template));
1588
1589        /* map user to kernel widget ID */
1590        template.id = get_widget_id(le32_to_cpu(w->id));
1591        if (template.id < 0)
1592                return template.id;
1593
1594        /* strings are allocated here, but used and freed by the widget */
1595        template.name = kstrdup(w->name, GFP_KERNEL);
1596        if (!template.name)
1597                return -ENOMEM;
1598        template.sname = kstrdup(w->sname, GFP_KERNEL);
1599        if (!template.sname) {
1600                ret = -ENOMEM;
1601                goto err;
1602        }
1603        template.reg = le32_to_cpu(w->reg);
1604        template.shift = le32_to_cpu(w->shift);
1605        template.mask = le32_to_cpu(w->mask);
1606        template.subseq = le32_to_cpu(w->subseq);
1607        template.on_val = w->invert ? 0 : 1;
1608        template.off_val = w->invert ? 1 : 0;
1609        template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1610        template.event_flags = le16_to_cpu(w->event_flags);
1611        template.dobj.index = tplg->index;
1612
1613        tplg->pos +=
1614                (sizeof(struct snd_soc_tplg_dapm_widget) +
1615                 le32_to_cpu(w->priv.size));
1616
1617        if (w->num_kcontrols == 0) {
1618                kcontrol_type = 0;
1619                template.num_kcontrols = 0;
1620                goto widget;
1621        }
1622
1623        control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1624        dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1625                w->name, w->num_kcontrols, control_hdr->type);
1626
1627        switch (le32_to_cpu(control_hdr->ops.info)) {
1628        case SND_SOC_TPLG_CTL_VOLSW:
1629        case SND_SOC_TPLG_CTL_STROBE:
1630        case SND_SOC_TPLG_CTL_VOLSW_SX:
1631        case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1632        case SND_SOC_TPLG_CTL_RANGE:
1633        case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1634                kcontrol_type = SND_SOC_TPLG_TYPE_MIXER;  /* volume mixer */
1635                template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1636                template.kcontrol_news =
1637                        soc_tplg_dapm_widget_dmixer_create(tplg,
1638                        template.num_kcontrols);
1639                if (!template.kcontrol_news) {
1640                        ret = -ENOMEM;
1641                        goto hdr_err;
1642                }
1643                break;
1644        case SND_SOC_TPLG_CTL_ENUM:
1645        case SND_SOC_TPLG_CTL_ENUM_VALUE:
1646        case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1647        case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1648        case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1649                kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1650                template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1651                template.kcontrol_news =
1652                        soc_tplg_dapm_widget_denum_create(tplg,
1653                        template.num_kcontrols);
1654                if (!template.kcontrol_news) {
1655                        ret = -ENOMEM;
1656                        goto hdr_err;
1657                }
1658                break;
1659        case SND_SOC_TPLG_CTL_BYTES:
1660                kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1661                template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1662                template.kcontrol_news =
1663                        soc_tplg_dapm_widget_dbytes_create(tplg,
1664                                template.num_kcontrols);
1665                if (!template.kcontrol_news) {
1666                        ret = -ENOMEM;
1667                        goto hdr_err;
1668                }
1669                break;
1670        default:
1671                dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1672                        control_hdr->ops.get, control_hdr->ops.put,
1673                        le32_to_cpu(control_hdr->ops.info));
1674                ret = -EINVAL;
1675                goto hdr_err;
1676        }
1677
1678widget:
1679        ret = soc_tplg_widget_load(tplg, &template, w);
1680        if (ret < 0)
1681                goto hdr_err;
1682
1683        /* card dapm mutex is held by the core if we are loading topology
1684         * data during sound card init. */
1685        if (card->instantiated)
1686                widget = snd_soc_dapm_new_control(dapm, &template);
1687        else
1688                widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1689        if (IS_ERR(widget)) {
1690                ret = PTR_ERR(widget);
1691                goto hdr_err;
1692        }
1693
1694        widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1695        widget->dobj.widget.kcontrol_type = kcontrol_type;
1696        widget->dobj.ops = tplg->ops;
1697        widget->dobj.index = tplg->index;
1698        list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1699
1700        ret = soc_tplg_widget_ready(tplg, widget, w);
1701        if (ret < 0)
1702                goto ready_err;
1703
1704        kfree(template.sname);
1705        kfree(template.name);
1706
1707        return 0;
1708
1709ready_err:
1710        snd_soc_tplg_widget_remove(widget);
1711        snd_soc_dapm_free_widget(widget);
1712hdr_err:
1713        kfree(template.sname);
1714err:
1715        kfree(template.name);
1716        return ret;
1717}
1718
1719static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1720        struct snd_soc_tplg_hdr *hdr)
1721{
1722        struct snd_soc_tplg_dapm_widget *widget;
1723        int ret, count, i;
1724
1725        count = le32_to_cpu(hdr->count);
1726
1727        if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1728                return 0;
1729
1730        dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1731
1732        for (i = 0; i < count; i++) {
1733                widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1734                if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1735                        dev_err(tplg->dev, "ASoC: invalid widget size\n");
1736                        return -EINVAL;
1737                }
1738
1739                ret = soc_tplg_dapm_widget_create(tplg, widget);
1740                if (ret < 0) {
1741                        dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1742                                widget->name);
1743                        return ret;
1744                }
1745        }
1746
1747        return 0;
1748}
1749
1750static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1751{
1752        struct snd_soc_card *card = tplg->comp->card;
1753        int ret;
1754
1755        /* Card might not have been registered at this point.
1756         * If so, just return success.
1757        */
1758        if (!card || !card->instantiated) {
1759                dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1760                        " widget card binding deferred\n");
1761                return 0;
1762        }
1763
1764        ret = snd_soc_dapm_new_widgets(card);
1765        if (ret < 0)
1766                dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1767                        ret);
1768
1769        return 0;
1770}
1771
1772static void set_stream_info(struct snd_soc_pcm_stream *stream,
1773        struct snd_soc_tplg_stream_caps *caps)
1774{
1775        stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1776        stream->channels_min = le32_to_cpu(caps->channels_min);
1777        stream->channels_max = le32_to_cpu(caps->channels_max);
1778        stream->rates = le32_to_cpu(caps->rates);
1779        stream->rate_min = le32_to_cpu(caps->rate_min);
1780        stream->rate_max = le32_to_cpu(caps->rate_max);
1781        stream->formats = le64_to_cpu(caps->formats);
1782        stream->sig_bits = le32_to_cpu(caps->sig_bits);
1783}
1784
1785static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1786                          unsigned int flag_mask, unsigned int flags)
1787{
1788        if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1789                dai_drv->symmetric_rates =
1790                        flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1791
1792        if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1793                dai_drv->symmetric_channels =
1794                        flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1795                        1 : 0;
1796
1797        if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1798                dai_drv->symmetric_samplebits =
1799                        flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1800                        1 : 0;
1801}
1802
1803static int soc_tplg_dai_create(struct soc_tplg *tplg,
1804        struct snd_soc_tplg_pcm *pcm)
1805{
1806        struct snd_soc_dai_driver *dai_drv;
1807        struct snd_soc_pcm_stream *stream;
1808        struct snd_soc_tplg_stream_caps *caps;
1809        int ret;
1810
1811        dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1812        if (dai_drv == NULL)
1813                return -ENOMEM;
1814
1815        if (strlen(pcm->dai_name))
1816                dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1817        dai_drv->id = le32_to_cpu(pcm->dai_id);
1818
1819        if (pcm->playback) {
1820                stream = &dai_drv->playback;
1821                caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1822                set_stream_info(stream, caps);
1823        }
1824
1825        if (pcm->capture) {
1826                stream = &dai_drv->capture;
1827                caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1828                set_stream_info(stream, caps);
1829        }
1830
1831        if (pcm->compress)
1832                dai_drv->compress_new = snd_soc_new_compress;
1833
1834        /* pass control to component driver for optional further init */
1835        ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1836        if (ret < 0) {
1837                dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1838                kfree(dai_drv->playback.stream_name);
1839                kfree(dai_drv->capture.stream_name);
1840                kfree(dai_drv->name);
1841                kfree(dai_drv);
1842                return ret;
1843        }
1844
1845        dai_drv->dobj.index = tplg->index;
1846        dai_drv->dobj.ops = tplg->ops;
1847        dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1848        list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1849
1850        /* register the DAI to the component */
1851        return snd_soc_register_dai(tplg->comp, dai_drv);
1852}
1853
1854static void set_link_flags(struct snd_soc_dai_link *link,
1855                unsigned int flag_mask, unsigned int flags)
1856{
1857        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1858                link->symmetric_rates =
1859                        flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1860
1861        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1862                link->symmetric_channels =
1863                        flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1864                        1 : 0;
1865
1866        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1867                link->symmetric_samplebits =
1868                        flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1869                        1 : 0;
1870
1871        if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1872                link->ignore_suspend =
1873                flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1874                1 : 0;
1875}
1876
1877/* create the FE DAI link */
1878static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1879        struct snd_soc_tplg_pcm *pcm)
1880{
1881        struct snd_soc_dai_link *link;
1882        struct snd_soc_dai_link_component *dlc;
1883        int ret;
1884
1885        /* link + cpu + codec + platform */
1886        link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1887        if (link == NULL)
1888                return -ENOMEM;
1889
1890        dlc = (struct snd_soc_dai_link_component *)(link + 1);
1891
1892        link->cpus      = &dlc[0];
1893        link->codecs    = &dlc[1];
1894        link->platforms = &dlc[2];
1895
1896        link->num_cpus   = 1;
1897        link->num_codecs = 1;
1898        link->num_platforms = 1;
1899
1900        if (strlen(pcm->pcm_name)) {
1901                link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1902                link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1903        }
1904        link->id = le32_to_cpu(pcm->pcm_id);
1905
1906        if (strlen(pcm->dai_name))
1907                link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1908
1909        link->codecs->name = "snd-soc-dummy";
1910        link->codecs->dai_name = "snd-soc-dummy-dai";
1911
1912        link->platforms->name = "snd-soc-dummy";
1913
1914        /* enable DPCM */
1915        link->dynamic = 1;
1916        link->dpcm_playback = le32_to_cpu(pcm->playback);
1917        link->dpcm_capture = le32_to_cpu(pcm->capture);
1918        if (pcm->flag_mask)
1919                set_link_flags(link,
1920                               le32_to_cpu(pcm->flag_mask),
1921                               le32_to_cpu(pcm->flags));
1922
1923        /* pass control to component driver for optional further init */
1924        ret = soc_tplg_dai_link_load(tplg, link, NULL);
1925        if (ret < 0) {
1926                dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1927                kfree(link->name);
1928                kfree(link->stream_name);
1929                kfree(link->cpus->dai_name);
1930                kfree(link);
1931                return ret;
1932        }
1933
1934        link->dobj.index = tplg->index;
1935        link->dobj.ops = tplg->ops;
1936        link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1937        list_add(&link->dobj.list, &tplg->comp->dobj_list);
1938
1939        snd_soc_add_dai_link(tplg->comp->card, link);
1940        return 0;
1941}
1942
1943/* create a FE DAI and DAI link from the PCM object */
1944static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1945        struct snd_soc_tplg_pcm *pcm)
1946{
1947        int ret;
1948
1949        ret = soc_tplg_dai_create(tplg, pcm);
1950        if (ret < 0)
1951                return ret;
1952
1953        return  soc_tplg_fe_link_create(tplg, pcm);
1954}
1955
1956/* copy stream caps from the old version 4 of source */
1957static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1958                                struct snd_soc_tplg_stream_caps_v4 *src)
1959{
1960        dest->size = cpu_to_le32(sizeof(*dest));
1961        memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1962        dest->formats = src->formats;
1963        dest->rates = src->rates;
1964        dest->rate_min = src->rate_min;
1965        dest->rate_max = src->rate_max;
1966        dest->channels_min = src->channels_min;
1967        dest->channels_max = src->channels_max;
1968        dest->periods_min = src->periods_min;
1969        dest->periods_max = src->periods_max;
1970        dest->period_size_min = src->period_size_min;
1971        dest->period_size_max = src->period_size_max;
1972        dest->buffer_size_min = src->buffer_size_min;
1973        dest->buffer_size_max = src->buffer_size_max;
1974}
1975
1976/**
1977 * pcm_new_ver - Create the new version of PCM from the old version.
1978 * @tplg: topology context
1979 * @src: older version of pcm as a source
1980 * @pcm: latest version of pcm created from the source
1981 *
1982 * Support from vesion 4. User should free the returned pcm manually.
1983 */
1984static int pcm_new_ver(struct soc_tplg *tplg,
1985                       struct snd_soc_tplg_pcm *src,
1986                       struct snd_soc_tplg_pcm **pcm)
1987{
1988        struct snd_soc_tplg_pcm *dest;
1989        struct snd_soc_tplg_pcm_v4 *src_v4;
1990        int i;
1991
1992        *pcm = NULL;
1993
1994        if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
1995                dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1996                return -EINVAL;
1997        }
1998
1999        dev_warn(tplg->dev, "ASoC: old version of PCM\n");
2000        src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
2001        dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2002        if (!dest)
2003                return -ENOMEM;
2004
2005        dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2006        memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2007        memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2008        dest->pcm_id = src_v4->pcm_id;
2009        dest->dai_id = src_v4->dai_id;
2010        dest->playback = src_v4->playback;
2011        dest->capture = src_v4->capture;
2012        dest->compress = src_v4->compress;
2013        dest->num_streams = src_v4->num_streams;
2014        for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2015                memcpy(&dest->stream[i], &src_v4->stream[i],
2016                       sizeof(struct snd_soc_tplg_stream));
2017
2018        for (i = 0; i < 2; i++)
2019                stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
2020
2021        *pcm = dest;
2022        return 0;
2023}
2024
2025static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
2026        struct snd_soc_tplg_hdr *hdr)
2027{
2028        struct snd_soc_tplg_pcm *pcm, *_pcm;
2029        int count;
2030        int size;
2031        int i;
2032        bool abi_match;
2033
2034        count = le32_to_cpu(hdr->count);
2035
2036        if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
2037                return 0;
2038
2039        /* check the element size and count */
2040        pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2041        size = le32_to_cpu(pcm->size);
2042        if (size > sizeof(struct snd_soc_tplg_pcm)
2043                || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
2044                dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
2045                        size);
2046                return -EINVAL;
2047        }
2048
2049        if (soc_tplg_check_elem_count(tplg,
2050                                      size, count,
2051                                      le32_to_cpu(hdr->payload_size),
2052                                      "PCM DAI")) {
2053                dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
2054                        count);
2055                return -EINVAL;
2056        }
2057
2058        for (i = 0; i < count; i++) {
2059                pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2060                size = le32_to_cpu(pcm->size);
2061
2062                /* check ABI version by size, create a new version of pcm
2063                 * if abi not match.
2064                 */
2065                if (size == sizeof(*pcm)) {
2066                        abi_match = true;
2067                        _pcm = pcm;
2068                } else {
2069                        abi_match = false;
2070                        pcm_new_ver(tplg, pcm, &_pcm);
2071                }
2072
2073                /* create the FE DAIs and DAI links */
2074                soc_tplg_pcm_create(tplg, _pcm);
2075
2076                /* offset by version-specific struct size and
2077                 * real priv data size
2078                 */
2079                tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2080
2081                if (!abi_match)
2082                        kfree(_pcm); /* free the duplicated one */
2083        }
2084
2085        dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2086
2087        return 0;
2088}
2089
2090/**
2091 * set_link_hw_format - Set the HW audio format of the physical DAI link.
2092 * @link: &snd_soc_dai_link which should be updated
2093 * @cfg: physical link configs.
2094 *
2095 * Topology context contains a list of supported HW formats (configs) and
2096 * a default format ID for the physical link. This function will use this
2097 * default ID to choose the HW format to set the link's DAI format for init.
2098 */
2099static void set_link_hw_format(struct snd_soc_dai_link *link,
2100                        struct snd_soc_tplg_link_config *cfg)
2101{
2102        struct snd_soc_tplg_hw_config *hw_config;
2103        unsigned char bclk_master, fsync_master;
2104        unsigned char invert_bclk, invert_fsync;
2105        int i;
2106
2107        for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2108                hw_config = &cfg->hw_config[i];
2109                if (hw_config->id != cfg->default_hw_config_id)
2110                        continue;
2111
2112                link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2113                        SND_SOC_DAIFMT_FORMAT_MASK;
2114
2115                /* clock gating */
2116                switch (hw_config->clock_gated) {
2117                case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2118                        link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2119                        break;
2120
2121                case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2122                        link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2123                        break;
2124
2125                default:
2126                        /* ignore the value */
2127                        break;
2128                }
2129
2130                /* clock signal polarity */
2131                invert_bclk = hw_config->invert_bclk;
2132                invert_fsync = hw_config->invert_fsync;
2133                if (!invert_bclk && !invert_fsync)
2134                        link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2135                else if (!invert_bclk && invert_fsync)
2136                        link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2137                else if (invert_bclk && !invert_fsync)
2138                        link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2139                else
2140                        link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2141
2142                /* clock masters */
2143                bclk_master = (hw_config->bclk_master ==
2144                               SND_SOC_TPLG_BCLK_CM);
2145                fsync_master = (hw_config->fsync_master ==
2146                                SND_SOC_TPLG_FSYNC_CM);
2147                if (bclk_master && fsync_master)
2148                        link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2149                else if (!bclk_master && fsync_master)
2150                        link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2151                else if (bclk_master && !fsync_master)
2152                        link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2153                else
2154                        link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2155        }
2156}
2157
2158/**
2159 * link_new_ver - Create a new physical link config from the old
2160 * version of source.
2161 * @tplg: topology context
2162 * @src: old version of phyical link config as a source
2163 * @link: latest version of physical link config created from the source
2164 *
2165 * Support from vesion 4. User need free the returned link config manually.
2166 */
2167static int link_new_ver(struct soc_tplg *tplg,
2168                        struct snd_soc_tplg_link_config *src,
2169                        struct snd_soc_tplg_link_config **link)
2170{
2171        struct snd_soc_tplg_link_config *dest;
2172        struct snd_soc_tplg_link_config_v4 *src_v4;
2173        int i;
2174
2175        *link = NULL;
2176
2177        if (le32_to_cpu(src->size) !=
2178            sizeof(struct snd_soc_tplg_link_config_v4)) {
2179                dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2180                return -EINVAL;
2181        }
2182
2183        dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2184
2185        src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2186        dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2187        if (!dest)
2188                return -ENOMEM;
2189
2190        dest->size = cpu_to_le32(sizeof(*dest));
2191        dest->id = src_v4->id;
2192        dest->num_streams = src_v4->num_streams;
2193        for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2194                memcpy(&dest->stream[i], &src_v4->stream[i],
2195                       sizeof(struct snd_soc_tplg_stream));
2196
2197        *link = dest;
2198        return 0;
2199}
2200
2201/* Find and configure an existing physical DAI link */
2202static int soc_tplg_link_config(struct soc_tplg *tplg,
2203        struct snd_soc_tplg_link_config *cfg)
2204{
2205        struct snd_soc_dai_link *link;
2206        const char *name, *stream_name;
2207        size_t len;
2208        int ret;
2209
2210        len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2211        if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2212                return -EINVAL;
2213        else if (len)
2214                name = cfg->name;
2215        else
2216                name = NULL;
2217
2218        len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2219        if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2220                return -EINVAL;
2221        else if (len)
2222                stream_name = cfg->stream_name;
2223        else
2224                stream_name = NULL;
2225
2226        link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2227                                     name, stream_name);
2228        if (!link) {
2229                dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2230                        name, cfg->id);
2231                return -EINVAL;
2232        }
2233
2234        /* hw format */
2235        if (cfg->num_hw_configs)
2236                set_link_hw_format(link, cfg);
2237
2238        /* flags */
2239        if (cfg->flag_mask)
2240                set_link_flags(link,
2241                               le32_to_cpu(cfg->flag_mask),
2242                               le32_to_cpu(cfg->flags));
2243
2244        /* pass control to component driver for optional further init */
2245        ret = soc_tplg_dai_link_load(tplg, link, cfg);
2246        if (ret < 0) {
2247                dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2248                return ret;
2249        }
2250
2251        /* for unloading it in snd_soc_tplg_component_remove */
2252        link->dobj.index = tplg->index;
2253        link->dobj.ops = tplg->ops;
2254        link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2255        list_add(&link->dobj.list, &tplg->comp->dobj_list);
2256
2257        return 0;
2258}
2259
2260
2261/* Load physical link config elements from the topology context */
2262static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2263        struct snd_soc_tplg_hdr *hdr)
2264{
2265        struct snd_soc_tplg_link_config *link, *_link;
2266        int count;
2267        int size;
2268        int i, ret;
2269        bool abi_match;
2270
2271        count = le32_to_cpu(hdr->count);
2272
2273        if (tplg->pass != SOC_TPLG_PASS_LINK) {
2274                tplg->pos += le32_to_cpu(hdr->size) +
2275                        le32_to_cpu(hdr->payload_size);
2276                return 0;
2277        };
2278
2279        /* check the element size and count */
2280        link = (struct snd_soc_tplg_link_config *)tplg->pos;
2281        size = le32_to_cpu(link->size);
2282        if (size > sizeof(struct snd_soc_tplg_link_config)
2283                || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2284                dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2285                        size);
2286                return -EINVAL;
2287        }
2288
2289        if (soc_tplg_check_elem_count(tplg,
2290                                      size, count,
2291                                      le32_to_cpu(hdr->payload_size),
2292                                      "physical link config")) {
2293                dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2294                        count);
2295                return -EINVAL;
2296        }
2297
2298        /* config physical DAI links */
2299        for (i = 0; i < count; i++) {
2300                link = (struct snd_soc_tplg_link_config *)tplg->pos;
2301                size = le32_to_cpu(link->size);
2302                if (size == sizeof(*link)) {
2303                        abi_match = true;
2304                        _link = link;
2305                } else {
2306                        abi_match = false;
2307                        ret = link_new_ver(tplg, link, &_link);
2308                        if (ret < 0)
2309                                return ret;
2310                }
2311
2312                ret = soc_tplg_link_config(tplg, _link);
2313                if (ret < 0)
2314                        return ret;
2315
2316                /* offset by version-specific struct size and
2317                 * real priv data size
2318                 */
2319                tplg->pos += size + le32_to_cpu(_link->priv.size);
2320
2321                if (!abi_match)
2322                        kfree(_link); /* free the duplicated one */
2323        }
2324
2325        return 0;
2326}
2327
2328/**
2329 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2330 * @tplg: topology context
2331 * @d: physical DAI configs.
2332 *
2333 * The physical dai should already be registered by the platform driver.
2334 * The platform driver should specify the DAI name and ID for matching.
2335 */
2336static int soc_tplg_dai_config(struct soc_tplg *tplg,
2337                               struct snd_soc_tplg_dai *d)
2338{
2339        struct snd_soc_dai_link_component dai_component;
2340        struct snd_soc_dai *dai;
2341        struct snd_soc_dai_driver *dai_drv;
2342        struct snd_soc_pcm_stream *stream;
2343        struct snd_soc_tplg_stream_caps *caps;
2344        int ret;
2345
2346        memset(&dai_component, 0, sizeof(dai_component));
2347
2348        dai_component.dai_name = d->dai_name;
2349        dai = snd_soc_find_dai(&dai_component);
2350        if (!dai) {
2351                dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2352                        d->dai_name);
2353                return -EINVAL;
2354        }
2355
2356        if (le32_to_cpu(d->dai_id) != dai->id) {
2357                dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2358                        d->dai_name);
2359                return -EINVAL;
2360        }
2361
2362        dai_drv = dai->driver;
2363        if (!dai_drv)
2364                return -EINVAL;
2365
2366        if (d->playback) {
2367                stream = &dai_drv->playback;
2368                caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2369                set_stream_info(stream, caps);
2370        }
2371
2372        if (d->capture) {
2373                stream = &dai_drv->capture;
2374                caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2375                set_stream_info(stream, caps);
2376        }
2377
2378        if (d->flag_mask)
2379                set_dai_flags(dai_drv,
2380                              le32_to_cpu(d->flag_mask),
2381                              le32_to_cpu(d->flags));
2382
2383        /* pass control to component driver for optional further init */
2384        ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2385        if (ret < 0) {
2386                dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2387                return ret;
2388        }
2389
2390        return 0;
2391}
2392
2393/* load physical DAI elements */
2394static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2395                                   struct snd_soc_tplg_hdr *hdr)
2396{
2397        struct snd_soc_tplg_dai *dai;
2398        int count;
2399        int i;
2400
2401        count = le32_to_cpu(hdr->count);
2402
2403        if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2404                return 0;
2405
2406        /* config the existing BE DAIs */
2407        for (i = 0; i < count; i++) {
2408                dai = (struct snd_soc_tplg_dai *)tplg->pos;
2409                if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2410                        dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2411                        return -EINVAL;
2412                }
2413
2414                soc_tplg_dai_config(tplg, dai);
2415                tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2416        }
2417
2418        dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2419        return 0;
2420}
2421
2422/**
2423 * manifest_new_ver - Create a new version of manifest from the old version
2424 * of source.
2425 * @tplg: topology context
2426 * @src: old version of manifest as a source
2427 * @manifest: latest version of manifest created from the source
2428 *
2429 * Support from vesion 4. Users need free the returned manifest manually.
2430 */
2431static int manifest_new_ver(struct soc_tplg *tplg,
2432                            struct snd_soc_tplg_manifest *src,
2433                            struct snd_soc_tplg_manifest **manifest)
2434{
2435        struct snd_soc_tplg_manifest *dest;
2436        struct snd_soc_tplg_manifest_v4 *src_v4;
2437        int size;
2438
2439        *manifest = NULL;
2440
2441        size = le32_to_cpu(src->size);
2442        if (size != sizeof(*src_v4)) {
2443                dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2444                         size);
2445                if (size)
2446                        return -EINVAL;
2447                src->size = cpu_to_le32(sizeof(*src_v4));
2448        }
2449
2450        dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2451
2452        src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2453        dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2454                       GFP_KERNEL);
2455        if (!dest)
2456                return -ENOMEM;
2457
2458        dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2459        dest->control_elems = src_v4->control_elems;
2460        dest->widget_elems = src_v4->widget_elems;
2461        dest->graph_elems = src_v4->graph_elems;
2462        dest->pcm_elems = src_v4->pcm_elems;
2463        dest->dai_link_elems = src_v4->dai_link_elems;
2464        dest->priv.size = src_v4->priv.size;
2465        if (dest->priv.size)
2466                memcpy(dest->priv.data, src_v4->priv.data,
2467                       le32_to_cpu(src_v4->priv.size));
2468
2469        *manifest = dest;
2470        return 0;
2471}
2472
2473static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2474                                  struct snd_soc_tplg_hdr *hdr)
2475{
2476        struct snd_soc_tplg_manifest *manifest, *_manifest;
2477        bool abi_match;
2478        int err;
2479
2480        if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2481                return 0;
2482
2483        manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2484
2485        /* check ABI version by size, create a new manifest if abi not match */
2486        if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2487                abi_match = true;
2488                _manifest = manifest;
2489        } else {
2490                abi_match = false;
2491                err = manifest_new_ver(tplg, manifest, &_manifest);
2492                if (err < 0)
2493                        return err;
2494        }
2495
2496        /* pass control to component driver for optional further init */
2497        if (tplg->comp && tplg->ops && tplg->ops->manifest)
2498                return tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2499
2500        if (!abi_match) /* free the duplicated one */
2501                kfree(_manifest);
2502
2503        return 0;
2504}
2505
2506/* validate header magic, size and type */
2507static int soc_valid_header(struct soc_tplg *tplg,
2508        struct snd_soc_tplg_hdr *hdr)
2509{
2510        if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2511                return 0;
2512
2513        if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2514                dev_err(tplg->dev,
2515                        "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2516                        le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2517                        tplg->fw->size);
2518                return -EINVAL;
2519        }
2520
2521        /* big endian firmware objects not supported atm */
2522        if (hdr->magic == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2523                dev_err(tplg->dev,
2524                        "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2525                        tplg->pass, hdr->magic,
2526                        soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2527                return -EINVAL;
2528        }
2529
2530        if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2531                dev_err(tplg->dev,
2532                        "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2533                        tplg->pass, hdr->magic,
2534                        soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2535                return -EINVAL;
2536        }
2537
2538        /* Support ABI from version 4 */
2539        if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2540            le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2541                dev_err(tplg->dev,
2542                        "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2543                        tplg->pass, hdr->abi,
2544                        SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2545                        tplg->fw->size);
2546                return -EINVAL;
2547        }
2548
2549        if (hdr->payload_size == 0) {
2550                dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2551                        soc_tplg_get_hdr_offset(tplg));
2552                return -EINVAL;
2553        }
2554
2555        if (tplg->pass == le32_to_cpu(hdr->type))
2556                dev_dbg(tplg->dev,
2557                        "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2558                        hdr->payload_size, hdr->type, hdr->version,
2559                        hdr->vendor_type, tplg->pass);
2560
2561        return 1;
2562}
2563
2564/* check header type and call appropriate handler */
2565static int soc_tplg_load_header(struct soc_tplg *tplg,
2566        struct snd_soc_tplg_hdr *hdr)
2567{
2568        tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2569
2570        /* check for matching ID */
2571        if (le32_to_cpu(hdr->index) != tplg->req_index &&
2572                tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2573                return 0;
2574
2575        tplg->index = le32_to_cpu(hdr->index);
2576
2577        switch (le32_to_cpu(hdr->type)) {
2578        case SND_SOC_TPLG_TYPE_MIXER:
2579        case SND_SOC_TPLG_TYPE_ENUM:
2580        case SND_SOC_TPLG_TYPE_BYTES:
2581                return soc_tplg_kcontrol_elems_load(tplg, hdr);
2582        case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2583                return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2584        case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2585                return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2586        case SND_SOC_TPLG_TYPE_PCM:
2587                return soc_tplg_pcm_elems_load(tplg, hdr);
2588        case SND_SOC_TPLG_TYPE_DAI:
2589                return soc_tplg_dai_elems_load(tplg, hdr);
2590        case SND_SOC_TPLG_TYPE_DAI_LINK:
2591        case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2592                /* physical link configurations */
2593                return soc_tplg_link_elems_load(tplg, hdr);
2594        case SND_SOC_TPLG_TYPE_MANIFEST:
2595                return soc_tplg_manifest_load(tplg, hdr);
2596        default:
2597                /* bespoke vendor data object */
2598                return soc_tplg_vendor_load(tplg, hdr);
2599        }
2600
2601        return 0;
2602}
2603
2604/* process the topology file headers */
2605static int soc_tplg_process_headers(struct soc_tplg *tplg)
2606{
2607        struct snd_soc_tplg_hdr *hdr;
2608        int ret;
2609
2610        tplg->pass = SOC_TPLG_PASS_START;
2611
2612        /* process the header types from start to end */
2613        while (tplg->pass <= SOC_TPLG_PASS_END) {
2614
2615                tplg->hdr_pos = tplg->fw->data;
2616                hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2617
2618                while (!soc_tplg_is_eof(tplg)) {
2619
2620                        /* make sure header is valid before loading */
2621                        ret = soc_valid_header(tplg, hdr);
2622                        if (ret < 0)
2623                                return ret;
2624                        else if (ret == 0)
2625                                break;
2626
2627                        /* load the header object */
2628                        ret = soc_tplg_load_header(tplg, hdr);
2629                        if (ret < 0)
2630                                return ret;
2631
2632                        /* goto next header */
2633                        tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2634                                sizeof(struct snd_soc_tplg_hdr);
2635                        hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2636                }
2637
2638                /* next data type pass */
2639                tplg->pass++;
2640        }
2641
2642        /* signal DAPM we are complete */
2643        ret = soc_tplg_dapm_complete(tplg);
2644        if (ret < 0)
2645                dev_err(tplg->dev,
2646                        "ASoC: failed to initialise DAPM from Firmware\n");
2647
2648        return ret;
2649}
2650
2651static int soc_tplg_load(struct soc_tplg *tplg)
2652{
2653        int ret;
2654
2655        ret = soc_tplg_process_headers(tplg);
2656        if (ret == 0)
2657                soc_tplg_complete(tplg);
2658
2659        return ret;
2660}
2661
2662/* load audio component topology from "firmware" file */
2663int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2664        struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2665{
2666        struct soc_tplg tplg;
2667        int ret;
2668
2669        /* setup parsing context */
2670        memset(&tplg, 0, sizeof(tplg));
2671        tplg.fw = fw;
2672        tplg.dev = comp->dev;
2673        tplg.comp = comp;
2674        tplg.ops = ops;
2675        tplg.req_index = id;
2676        tplg.io_ops = ops->io_ops;
2677        tplg.io_ops_count = ops->io_ops_count;
2678        tplg.bytes_ext_ops = ops->bytes_ext_ops;
2679        tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2680
2681        ret = soc_tplg_load(&tplg);
2682        /* free the created components if fail to load topology */
2683        if (ret)
2684                snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
2685
2686        return ret;
2687}
2688EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2689
2690/* remove this dynamic widget */
2691void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2692{
2693        /* make sure we are a widget */
2694        if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2695                return;
2696
2697        remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2698}
2699EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2700
2701/* remove all dynamic widgets from this DAPM context */
2702void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2703        u32 index)
2704{
2705        struct snd_soc_dapm_widget *w, *next_w;
2706
2707        list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2708
2709                /* make sure we are a widget with correct context */
2710                if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2711                        continue;
2712
2713                /* match ID */
2714                if (w->dobj.index != index &&
2715                        w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2716                        continue;
2717                /* check and free and dynamic widget kcontrols */
2718                snd_soc_tplg_widget_remove(w);
2719                snd_soc_dapm_free_widget(w);
2720        }
2721        snd_soc_dapm_reset_cache(dapm);
2722}
2723EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2724
2725/* remove dynamic controls from the component driver */
2726int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2727{
2728        struct snd_soc_dobj *dobj, *next_dobj;
2729        int pass = SOC_TPLG_PASS_END;
2730
2731        /* process the header types from end to start */
2732        while (pass >= SOC_TPLG_PASS_START) {
2733
2734                /* remove mixer controls */
2735                list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2736                        list) {
2737
2738                        /* match index */
2739                        if (dobj->index != index &&
2740                                index != SND_SOC_TPLG_INDEX_ALL)
2741                                continue;
2742
2743                        switch (dobj->type) {
2744                        case SND_SOC_DOBJ_MIXER:
2745                                remove_mixer(comp, dobj, pass);
2746                                break;
2747                        case SND_SOC_DOBJ_ENUM:
2748                                remove_enum(comp, dobj, pass);
2749                                break;
2750                        case SND_SOC_DOBJ_BYTES:
2751                                remove_bytes(comp, dobj, pass);
2752                                break;
2753                        case SND_SOC_DOBJ_GRAPH:
2754                                remove_route(comp, dobj, pass);
2755                                break;
2756                        case SND_SOC_DOBJ_WIDGET:
2757                                remove_widget(comp, dobj, pass);
2758                                break;
2759                        case SND_SOC_DOBJ_PCM:
2760                                remove_dai(comp, dobj, pass);
2761                                break;
2762                        case SND_SOC_DOBJ_DAI_LINK:
2763                                remove_link(comp, dobj, pass);
2764                                break;
2765                        case SND_SOC_DOBJ_BACKEND_LINK:
2766                                /*
2767                                 * call link_unload ops if extra
2768                                 * deinitialization is needed.
2769                                 */
2770                                remove_backend_link(comp, dobj, pass);
2771                                break;
2772                        default:
2773                                dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2774                                        dobj->type);
2775                                break;
2776                        }
2777                }
2778                pass--;
2779        }
2780
2781        /* let caller know if FW can be freed when no objects are left */
2782        return !list_empty(&comp->dobj_list);
2783}
2784EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
2785